What year did primo dirt monster Kevlar tyres come out.

[dordymush]

As above. 
Wondered when these were realised.
Got a pair I'm gonna put on my rider bike but can't find out much about them

[pickle]

would've thought they were pretty new Dave, don't think Kevlar beads were used much before 2000 even on MTB tyres?

[fugazi]

Something's making Me think they were a lot earlier than what You'd imagine, but I can't think why 


Edit : I don't think they were Kevlar beaded, it was a strip through the tread.

[dordymush]

had a look through a few magazines last night but still cant find em.
doing my head in lol